Assertion: May 31 is celebrated as No Tobacco Day.
Reason: On this day, a member of Royal family of England died due to lung cancer.

Options

A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.

Answer

To solve the question regarding the assertion and reason, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Assertion**: The assertion states that "May 31 is celebrated as No Tobacco Day." This is a well-known fact as World No Tobacco Day is indeed observed on May 31 every year.

2. **Evaluate the Assertion**: Since World No Tobacco Day is recognized globally to raise awareness about the dangers of tobacco use, we can conclude that the assertion is **true**.

3. **Identify the Reason**: The reason given is "On this day, a member of the Royal family of England died due to lung cancer." We need to verify the accuracy of this statement.

4. **Evaluate the Reason**: There is no widely accepted historical evidence or significance that links the establishment of World No Tobacco Day to the death of a member of the Royal family of England. Therefore, this reason is **false**.

5. **Conclusion**: Since the assertion is true and the reason is false, we can summarize that:
- Assertion: True
- Reason: False

6. **Select the Correct Option**: Based on our evaluation, the correct option is that the assertion is true but the reason is false.

### Final Answer:
The correct answer is **Option C**: Assertion is true but the reason is false.

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